Author: Michael Hirsch

I had the SIGSEGV error about libgobject-2.0.so.0 when running idlde from Terminal with KDE desktop on Ubuntu 14.04.

Following this procedure, from KDE desktop, I click the lower left “start” button on the desktop toolbar, go to “system settings” (you can start typing it in the start menu and it’ll come up) and make the following changes to get rid of the Oxygen theme.

I had experienced with BIOS version 0030 from Sept. 2014 that hibernate in Ubuntu 14.04 didn’t work for me–upon resume with a Displayport monitor, I just got a scrambled screen. I hadn’t seen others complain about this. I tentatively find that upgrading to BIOS 0035 of Jan. 2015 does allow hibernate to work. I’ll keep trying it to be more sure.

Even if your system is 64-bit, you should use 32-bit Google Earth at this time.

On some installs, typing in terminalgoogle-earth
gives the error
./googleearth-bin: error while loading shared libraries: libfontconfig.so.1: cannot open shared object file: No such file or directory
and libSM.so.6, etc.

I had the issue a few others had where trying to install WINE on an Ubuntu 14.04 x64 system that had previously been upgraded from Ubuntu x64 wouldn’t work with a message about liblcms2-2 conflicting with liblcms2-2:i386. Even the Wine PPA wouldn’t help.

Then I ran across a fix where you typesudo apt-get install liblcms2-2=2.5-0ubuntu4
and then you can install wine!

I applaud the Raspberry Pi 2 with ARMv7 quad-core CPU and LPDDR2 RAM release. My opinion on the original Raspberry Pi (non +, model B 256MB and 512MB RAM) boards was fairly sour due to the anemic ARMv6 single core CPU. Generally speaking, the Beaglebone Black and Intel Edison have been substantially better choices for the maker and professional embedded systems designer.

The Beaglebone Black has been a much better choice than the Raspberry Pi due in part to the PRU, DDR3L RAM (faster), and ARMv7 CPU.

The Intel Edison has been a much better choice than the Raspberry Pi and in some applications better than the Beaglebone Black due to the Edison’s dual-core x86 CPU, fast RAM, and extremely favorable energy efficiency. Depending on your application, the Edison may run 10x as long or more on battery than the Raspberry Pi (1 or 2) and Beaglebone Black.

I am awaiting side-by-side comparisions of the new Raspberry Pi 2 on benchmarks with the Phoronix Test Suite next to the Beaglebone Black and Edison to say more. I don’t plan to purchase a Raspberry Pi 2 at this time to do OpenCV benchmarking, but would be glad to hear if someone else does this benchmarking.